Blue light emitted by phone screen is the major cause to eye strain and vision loss. Now by this super application: Bluelight Filter, you can easily get rid of these problems.Compared to other apps, Bluelight Filter has the following advantages:1. Reduce the blue light to relieve eye fatigue and protect your eyes;2. Provide 5 different filter colors for you to choose, the filter strength can also be dynamically adjusted;3. Very stable, greatly reducing the possibility of Force Close;4. Completely free and Easy to use. Also provide an entrance in the status bar, so that you can operate it easily.